Hydrogen filling, metering and number calling system

Abstract

The invention discloses a hydrogen filling metering number calling system, and relates to the technical field of hydrogen filling metering number calling. Daily filling data of filling columns are acquired for centralized analysis, regional division is carried out on the filling columns in a field, meanwhile, matching and comparison with the loading capacity of filling vehicles entering the field are carried out, and corresponding matching serial numbers are automatically generated; and real-time display is carried out through the LED loading display screen, so that more detailed number calling processing is carried out on the vehicles meeting the filling requirement, more efficient hydrogen filling of the filling vehicles in the field is realized, and the conditions that the vehicles cannot be effectively managed and controlled when entering the field for filling, the vehicles in the field are disordered, and the queuing time is increased are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of hydrogen filling metering and calling, and in particular to a hydrogen filling metering and calling system. Background Art

[0002] In the high-purity hydrogen device, the methanol purge gas is purified by the PSA pressure swing adsorption device, and the qualified product 99.999% high-purity hydrogen is pressurized to about 20Mpa by the compressor and filled into the hydrogen transport tube bundle truck by the filling column;

[0003] At present, most hydrogen metering methods are to have operators read the on-site pressure and temperature of the transport tube bundle vehicle on site and use a calculation formula to measure the weight of the loaded hydrogen. In addition, it is impossible to effectively control the vehicles when they enter the site for filling. The vehicles on site are in chaos, and on-site operators need to make specific arrangements to the filling station, which leads to large measurement deviations and the risk of personnel intervention.

[0004] To this end, we propose a hydrogen filling metering and calling system. Summary of the invention

[0005] The purpose of the present invention is to provide a hydrogen filling metering and calling system to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hydrogen filling metering and calling system, comprising a hydrogen filling metering and calling platform and an LED loading display screen, wherein the hydrogen filling metering and calling platform comprises a login detection terminal, a filling distribution management unit, a filling column and a filling column safety control unit;

[0007] The login detection terminal is used for generating and processing vehicle hydrogen filling data, wherein the vehicle hydrogen filling data includes the identity information of the filling vehicle driver and the filling vehicle information, and also sends the vehicle hydrogen filling data to the filling column safety control unit and the filling distribution management unit;

[0008] The filling distribution management unit actively collects the external state data of the filling column after acquiring the vehicle hydrogen filling data, and performs the empty filling column identification and sub-control processing in combination with the filling column control signal, and generates an empty signal and sends it to the LED loading display screen; the filling column safety control unit is used to collect the internal state data of the filling column, and performs the filling column classification control operation according to the vehicle hydrogen filling data, and generates a filling column control signal; the filling column is used to fill the hydrogen transport tube bundle vehicle with hydrogen;

[0009] The LED loading display screen is used to display the filling column number of the hydrogen transport tube bundle vehicle for filling hydrogen.

[0010] Furthermore, the login detection terminal processes the vehicle hydrogen filling data in the following manner:

[0011] Step 1: Verify the identity information of the driver of the filling vehicle and remove the hydrogen filling vehicles that have not obtained permission from the depot;

[0012] Step 2: Classify the load information of vehicles allowed to be filled with hydrogen and guide personnel to enter the site.

[0013] Furthermore, the state data in the filling columns include the pressure difference, temperature value and density value of the hydrogen being filled and discharged in each filling column.

[0014] Furthermore, the filling column safety control unit performs the filling column classification control operation including:

[0015] The pressure difference, temperature and density of each filling column when charging and discharging hydrogen are calculated, and the flow rate of each filling column is obtained;

[0016] Obtain the vehicle load value allowed for hydrogen filling and the flow value of each filling column for interval classification;

[0017] If the flow interval classification value of the filling column is greater than the load interval classification value of the filling vehicle, ensure that the maximum load interval vehicle of the filling vehicle corresponds to the maximum flow of the filling column, and the remaining filling vehicles are filled in sequence according to the flow order of the filling column, and a first-level control signal is generated;

[0018] If the flow interval classification value of the filling column is smaller than the load interval classification value of the filling vehicle, ensure that the vehicle with the maximum load interval of the filling vehicle corresponds to the minimum flow of the filling column, and the remaining filling vehicles are filled in sequence according to the flow order of the filling column, and a secondary control signal is generated.

[0019] Furthermore, the external status data of the filling column includes the operating status of the compressor, the grounding status of the filling column and the valve status of the filling column.

[0020] Furthermore, the filling distribution management unit performs the vacant filling column identification and sub-control processing including:

[0021] Step 1: When the first-level control signal is obtained, the external state data of the filling column corresponding to the maximum flow is collected, and the logical relationship "and" is used to perform logic configuration using Honeywell CB software. When the compressor operation state is STOP, the electrostatic grounding device is not grounded, and the filling column valve state is closed, these three conditions are met at the same time. At this time, the filling column is in an idle state and marked with uppercase letters according to the regional distribution. At the same time, the queue number of the maximum load filling vehicle is marked with lowercase letters, and hydrogen is filled one by one according to the queue number of the maximum load filling vehicle. The filling signal is combined with the uppercase letters of the filling column and the lowercase letters of the filling vehicle, and fed back to the LED loading display screen. The remaining filling vehicles and the remaining idle filling columns are digitally marked in the order of discharge, that is, the corresponding number of the filling vehicle goes to the corresponding number of the filling column for filling;

[0022] Step 2: When the secondary control signal is obtained, the external status data of the filling column corresponding to the minimum flow is collected. The collection method is the same as step one, and the status of the filling column corresponding to the minimum flow is marked with uppercase letters, and the queue number of the maximum load filling vehicle is marked with lowercase letters. The combination of the two letters is fed back to the LED loading display to notify the maximum load filling vehicle to fill. The remaining filling vehicles are filled at the corresponding filling columns through digital correspondence.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. In the present invention, by adding a mass flow meter and transmitting it remotely to the DCS centralized control center, uninterrupted data recording and historical trend query are realized, and an LED loading display screen is added to respectively collect the compressor operation status, the electrostatic grounding device, and the filling column valve status, and use the logical relationship "and" to perform logic configuration using Honeywell CB software. When the compressor operation status is STOP, the electrostatic grounding device is not grounded, and the filling column valve status is closed, when these three conditions are met at the same time, the filling column is in an idle state, and the LED display screen shows that the filling column is in an idle state. The vehicle to be loaded can park the vehicle in the loading area according to the corresponding instructions and wait for the completion of the filling. The intelligent parking calling system is optimized, the accuracy of the measurement is ensured, the difficulty of operation is reduced, and the interference of human factors is avoided;

[0025] 2. In the present invention, the daily filling data of the filling columns is obtained for centralized analysis, and the filling columns in the yard are divided into areas. At the same time, the data is matched with the load of the filling vehicles entering the yard, so that more detailed calling processing can be performed on vehicles that meet the filling requirements, and the filling vehicles can be more effectively filled with hydrogen in the yard, avoiding the inability to effectively control the vehicles when they enter the yard for filling, and the occurrence of chaotic vehicles on site. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a block diagram of the hydrogen filling metering and calling system of the present invention;

[0027] Figure 2 The figure is a schematic diagram of the flow of the hydrogen filling metering and calling system of the present invention. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-2 , the present invention provides a technical solution:

[0030] Example 1: After the methanol purge gas is purified by the PSA pressure swing adsorption device, the qualified product 99.999% high-purity hydrogen is pressurized to about 20Mpa by the compressor, and then filled into the hydrogen transport tube bundle vehicle by the filling column. During the filling process, the high-purity hydrogen pressure in the tube needs to be detected and the gas is replenished in time. For this reason, there will be a time interval, resulting in some filling columns being unable to be filled in the first time, such as Figure 1 As shown, the advantage of using a hydrogen filling metering and calling system is that it facilitates the field transport bundle vehicle to more effectively fill hydrogen;

[0031] The filling metering and calling system is divided into a hydrogen filling metering and calling platform and an LED loading display screen. The transport tube bundle vehicle needs to undergo identity authentication after entering the site. For this purpose, a login detection terminal is set at the front end of the hydrogen filling metering and calling platform. Only transport tube bundle vehicles that meet the requirements can enter the site for hydrogen filling. The focus is on checking the identity information of the transport tube bundle vehicle driver and the information of the transport tube bundle vehicle itself. It is also necessary to obtain the relevant transport tube bundle vehicle loading data and upload it to the filling distribution management unit and the filling column safety management unit.

[0032] The filling distribution management unit actively collects the external status data of the filling column after obtaining the vehicle hydrogen filling data, and performs the empty filling column identification and control processing in combination with the filling column control signal, and generates an empty signal and sends it to the LED loading display;

[0033] The external status data of the filling column here include the running status of the compressor, the grounding status of the filling column and the valve status of the filling column, that is, the running status of the compressor on the corresponding filling column is STOP, the electrostatic grounding device is not grounded, and the valve status of the filling column is closed. Usually, when these three conditions are met at the same time, that is, the logical relationship "and" is used, and the logic configuration is performed using Honeywell CB software, that is, when the three conditions are met at the same time, subsequent operations will be performed, and this filling column will be in an idle state, and the idle state will be displayed on the LED display;

[0034] Vehicles waiting to be loaded can park in the waiting area according to the corresponding instructions and wait for the filling to be completed. However, considering the changes in the number of filling columns with different flow rates in the idle state, and the movement of filling columns to corresponding positions for vehicles with different loads, there will still be corresponding confusion.

[0035] Example 2: In order to make a more detailed allocation of the transport bundle vehicles in the field, the filling columns with different flow rates in the field are first classified and processed, and the transport bundle vehicles entering the field are classified according to the load, and the two are classified and compared;

[0036] The filling column safety control unit is used to collect the status data in the filling column, and perform classification control operations on the filling column according to the vehicle hydrogen filling data, and generate a filling column control signal. The status data in the filling column here includes the pressure difference, temperature value and density value of each filling column when filling and discharging hydrogen, which are collected and obtained through the installed mass flow meter, and the processor calculates the accurate hydrogen filling flow rate based on these parameters, and displays the results on the display to obtain the flow value of each filling column after calculation;

[0037] At the same time, the collected flow values ​​of each filling column are classified and controlled. If the flow interval classification value of the filling column is greater than the charging vehicle load interval classification value, that is, the flow category quantity value of the filling column is greater than the vehicle load category value, in simple terms, the transport bundle vehicles in the field are mainly divided into two categories: large vehicles and small vehicles, and the corresponding filling columns have three categories: large flow, general flow and small flow. At this time, it is convenient to control the vehicles. First, classify and queue the vehicles, and sort the queued vehicles according to capital letters;

[0038] At the same time, the filling columns are classified, and multiple groups of filling columns with large flow are marked with lowercase letters. The large vehicles are matched with the large flow filling columns first, and the corresponding combination serial numbers, Aa, Bb, Cc, etc., are generated and fed back to the LED display. The driver can feedback information through the LED display and drive to the corresponding filling column for filling in combination with the matching signal of his own filling vehicle;

[0039] As for the remaining trolleys, the selection range is wider, and they can be selected in the general flow and small flow filling columns, and they also need to be selected in sequence. To facilitate the information exchange between the two parties, the trolleys and the remaining filling columns are digitally marked in sequence, that is, 1-1, 2-2, 3-3 and other digital representations, and feedback is also given on the LED display screen. When the corresponding filling column is in an idle state;

[0040] For example, when a large vehicle is still inflating on the corresponding filling column, the filling column on the line on the small vehicle side is idle. At this time, if the login detection end does not detect that a small vehicle has entered the site, the subsequent large vehicle can be arranged to inflate the filling column on the small vehicle route to avoid the situation where there are idle filling columns but vehicles are queuing;

[0041] When the flow interval classification value of the filling column is less than the load interval classification value of the charging vehicle, there are more types of vehicle filling, but fewer types of filling column flow. At this time, there are large vehicles, medium vehicles and small vehicles, but the filling column only has large flow and small flow. At this time, in order to speed up the filling rate of vehicles in the field, medium vehicles and small vehicles are quickly filled first. The large vehicles are also arranged for filling first, but the large vehicles are matched with small flow filling columns first. The remaining large flow filling columns are left for medium vehicles and small vehicles, and the entire classification is the same as the above operation;

[0042] When vehicles that meet the conditions enter the site, they will be classified and compared by the filling column safety control unit in the hydrogen filling metering and calling platform, thereby generating a corresponding control signal and sending it to the filling distribution management unit. The filling distribution management unit will perform sub-control processing on the acquired control signal, and ultimately achieve accurate and reasonable allocation of vehicles and filling columns, thereby improving the overall efficiency of vehicle filling in the site and avoiding vehicle chaos in the site.

[0043] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A hydrogen filling metering and calling system, characterized in that: It includes a hydrogen filling metering and calling platform and an LED loading display screen. The hydrogen filling metering and calling platform includes a login detection terminal, a filling distribution management unit, a filling column and a filling column safety management and control unit; The login detection terminal is used for generating and processing vehicle hydrogen filling data, wherein the vehicle hydrogen filling data includes the identity information of the filling vehicle driver and the filling vehicle information, and also sends the vehicle hydrogen filling data to the filling column safety control unit and the filling distribution management unit; The filling distribution management unit actively collects the external state data of the filling column after acquiring the vehicle hydrogen filling data, and performs the empty filling column identification and sub-control processing in combination with the filling column control signal, and generates an empty signal and sends it to the LED loading display screen; the filling column safety control unit is used to collect the internal state data of the filling column, and performs the filling column classification control operation according to the vehicle hydrogen filling data, and generates a filling column control signal; the filling column is used to fill the hydrogen transport tube bundle vehicle with hydrogen; The LED loading display screen is used to display the filling column number of the hydrogen transport tube bundle vehicle for filling hydrogen.

2. A hydrogen filling metering and calling system according to claim 1, characterized in that: The login detection terminal processes the vehicle hydrogen filling data in the following manner: Step 1: Verify the identity information of the driver of the filling vehicle and remove the hydrogen filling vehicles that have not obtained permission from the depot; Step 2: Classify the load information of vehicles allowed to be filled with hydrogen and guide personnel to enter the site.

3. A hydrogen filling metering and calling system according to claim 2, characterized in that: The state data in the filling columns include the pressure difference, temperature and density values ​​for filling and discharging hydrogen in each filling column.

4. A hydrogen filling metering and calling system according to claim 3, characterized in that: The filling column safety control unit performs the filling column classification control operation including: The pressure difference, temperature and density of each filling column when charging and discharging hydrogen are calculated, and the flow rate of each filling column is obtained; Obtain the vehicle load value allowed for hydrogen filling and the flow value of each filling column for interval classification; If the flow interval classification value of the filling column is greater than the load interval classification value of the filling vehicle, ensure that the maximum load interval vehicle of the filling vehicle corresponds to the maximum flow of the filling column, and the remaining filling vehicles are filled in sequence according to the flow order of the filling column, and a first-level control signal is generated; If the flow interval classification value of the filling column is smaller than the load interval classification value of the filling vehicle, ensure that the vehicle with the maximum load interval of the filling vehicle corresponds to the minimum flow of the filling column, and the remaining filling vehicles are filled in sequence according to the flow order of the filling column, and a secondary control signal is generated.

5. A hydrogen filling metering and calling system according to claim 4, characterized in that: The external status data of the filling column includes the operating status of the compressor, the grounding status of the filling column and the valve status of the filling column.

6. A hydrogen filling metering and calling system according to claim 5, characterized in that: The filling distribution management unit performs the vacant filling column identification and sub-control processing including: Step 1: When the first-level control signal is obtained, the external state data of the filling column corresponding to the maximum flow is collected, and the logical relationship "and" is used to perform logic configuration using Honeywell CB software. When the compressor operation state is STOP, the electrostatic grounding device is not grounded, and the filling column valve state is closed, these three conditions are met at the same time. At this time, the filling column is in an idle state and marked with uppercase letters according to the regional distribution. At the same time, the queue number of the maximum load filling vehicle is marked with lowercase letters, and hydrogen is filled one by one according to the queue number of the maximum load filling vehicle. The filling signal is combined with the uppercase letters of the filling column and the lowercase letters of the filling vehicle, and fed back to the LED loading display screen. The remaining filling vehicles and the remaining idle filling columns are digitally marked in the order of discharge, that is, the corresponding number of the filling vehicle goes to the corresponding number of the filling column for filling; Step 2: When the secondary control signal is obtained, the external status data of the filling column corresponding to the minimum flow is collected. The collection method is the same as step one, and the status of the filling column corresponding to the minimum flow is marked with uppercase letters, and the queue number of the maximum load filling vehicle is marked with lowercase letters. The combination of the two letters is fed back to the LED loading display to notify the maximum load filling vehicle to fill. The remaining filling vehicles are filled at the corresponding filling columns through digital correspondence.

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